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D10

8D16 Wahyu Nurwening2411101029

Diketahui : fc = 25 N/mm2

fy = 400 N/mm2

Ditannya : Diagram Interasi = ........?

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Wahyu Nurwening2411101029

Jaa! :

Menghitung Po dan Pn

Ast=

n

1

4 D

2

=8

1

4 16

2

=1608.50mm

2

Ag=hb=400x 400=160000mm2

Po=0.85 f c' (AgAst)+ fy Ast=0.85x25 (1600001608.50 )+400x1608.50=4009217.65N

Pn=rPo=0.8x 4009217.65=3207374.12N

Menghitung cbal

d1=40+10+

16

2=58mm

d2=

400

2=200mm

d3=40058=342mm

s=fy

Es=

400 N

mm2

200000 N

mm2

=0.002

cb

cu=

d3

cu+ s

cb

0.003=

342

0.003+0.002 cb=205.20mm

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Wahyu Nurwening2411101029